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Dense network, intense seismicity and tectonics of Taiwan

Wu, Francis T. and Ross, Zachary E. and Okaya, David and Ben-Zion, Yehuda and Wang, Chien-Ying and Kuo-Chen, Hao and Liang, Wen-Tzong (2016) Dense network, intense seismicity and tectonics of Taiwan. Tectonophysics, 692, Pt. B . pp. 152-163. ISSN 0040-1951. doi:10.1016/j.tecto.2016.04.025.

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A temporary seismic network consisting of 295 land stations was deployed in 2009 in Taiwan to monitor airgun sources during an onshore-offshore experiment in Taiwan. We exploit the continuously recorded dataset to detect and map seismicity in the seismically very active Taiwan. By combining recent automatic detection and phase picking techniques, we successfully generate an initial earthquake catalog of over 8400 events. The hypoDD algorithm is used to relocate and filter these events. This network recorded smaller events than the permanent regional network because of the many stations around the high mountain ranges and the generally high station density along 6 lines. The results based on the 2009 data generally reproduce the dominant seismicity features from many years of earthquake monitoring in Taiwan. In addition, we map hitherto unknown dipping zones under the Foothills and the Central Range that may correspond to seismogenic structures.

Item Type:Article
Related URLs:
URLURL TypeDescription
Wu, Francis T.0000-0003-4529-9862
Ross, Zachary E.0000-0002-6343-8400
Ben-Zion, Yehuda0000-0002-9602-2014
Additional Information:© 2016 Published by Elsevier. Received 6 April 2015, Revised 19 March 2016, Accepted 13 April 2016, Available online 16 April 2016. We would like to acknowledge the support of NSF grants EAR0410227 and EAR1010645.
Group:Seismological Laboratory
Funding AgencyGrant Number
Subject Keywords:Dense seismic array; Auto-picking; Relocation; Seismicity; Taiwan tectonics
Record Number:CaltechAUTHORS:20190423-155306303
Persistent URL:
Official Citation:Francis T. Wu, Zachary E. Ross, David Okaya, Yehuda Ben-Zion, Chien-Ying Wang, Hao Kuo-Chen, Wen-Tzong Liang, Dense network, intense seismicity and tectonics of Taiwan, Tectonophysics, Volume 692, Part B, 2016, Pages 152-163, ISSN 0040-1951, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94899
Deposited By: George Porter
Deposited On:24 Apr 2019 14:37
Last Modified:16 Nov 2021 17:08

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